Can't find this free online,but its available here-
Atmospheric Research
Volume 75, Issues 1-2 , April 2005, Pages 71-87
http://www.sciencedirect.com/science...995d4ed7622ec5

Influence of an island land mass on the frequency of waterspout and tornado
formation in its vicinity

Example of the Isle of Wight with regard to waterspouts and tornadoes
affecting the English South Coast

G.T. Meaden, , P. Matthews, N. Bolton, D.M. Elsom, A. Gilbert, D.J. Reynolds
and M.W. Rowe

Tornado and Storm Research Organisation, Oxford Brookes University, Oxford,
OX3 0BP, UK

Received 13 November 2002; accepted 17 December 2004. Available online 25
February 2005.



Abstract
This research deals with the incidence of tornadoes and waterspouts along
the coasts of Hampshire and Sussex. In particular, the areas north and east
of the Isle of Wight are studied and some cases analysed. The severity of
the property damage indicates tornado tracks up to 900 m wide (as at Selsey
on 7 January 1998) and suggests tornado intensities up to T8 on the
International Tornado Scale. On extreme occasions (e.g. 14 December 1810, 28
September 1876, 7-8 January 1998, 28 October 2000, 30 October 2000) many
dozens-and sometimes hundreds-of properties were damaged. The work suggests
that the presence of the Isle of Wight's land mass in westerly and
south-westerly conditions disturbs the atmospheric circulation sufficiently
to trigger or to intensify tornadic vortices from storm cells, and implies
that in the absence of the island there would be fewer such occurrences.